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Abstract

We present a detailed study on the generation of widely tunable visible light through four wave mixing in specifically designed micro-structured fibers. The fiber’s properties are optimized for an efficient conversion to the visible and near infrared with a combined tunability from 620 to 910 nm of a picosecond Yb-doped tunable source for biomedical applications.

Fig. 4 (a) d-FWM tuning curves (maximum of the signal spectra) on the signal branch (anti-Stokes) for the six fibers tested (PCF-A to -E and Ref PCF, see text for details), and (b) signal spectra for different pump wavelength (obtained with Ref PCF).